Elevating apparatus



zEsBAuGII AND II Pat-ented Oct. 117

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`ZESBAUGH AND H ELEVATING APPARATUS.

APPLICATION man Amm. 192|.

L. G. ZESBAUGH AND H ANDERSON.

ELEVATING APPARATUS. APPLICATION FILED APR. 2|. 192x.-

6 SHEETS-SHEET 3.

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am R B O NSD T ZAYMA HB .ZESBAUGH AND H. ANDERSON.

ELEVATING APPARATUS.

APPLICATION FILED APR. 21. 'I9

Patented Oct. 17, 1922..

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ANDERSON,

. ANDERSON ZESBAUGH AND H ELEVATING APPARATUS.

AFPLICATIQN FILED APR Patented Oct. l?, 1922 G.SHEETS-SHEET 5.

NVEA/To@ LG, ZESBAUGH.

H, ANDERSON, SY @M ATTORNEYS.

L. G. ZESBAUGH AND H. ANDERSON ELEVATING APPARATUS.

APPLICATION FILED APR. 2l. |921.

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LAWRENCE Gr. ZESB''GH AND HELE/HER ANDERSON, Ol MINNEAFOLIS, MINNESOTA, ASSIGNORS TO WASHBUEuT-CRGSBY COMPANY', Ol? llllIllNE-POLIS, MINNESOTA, A

CORPGRATION.

Application filed April 214,

To all 'whom/t may concern:

Be it known that we, LAWRENCE Gr. Zas- BAUGH and HnLMnn AND'nnsoN, citizens of the United States, residing at Minneapolis, in the county of Hennepin and State of Min-y nesota, have invented certain new and useful Improvements in lillevatingl Apparatus, of which the following is a specification.

.Our invention relates to elevating apparatus and while intended particularly for elevating sacks of flour in mills, it is obvious that the apparatus may be used for elevating other packages and articles. An object Aof the invention is to provide apparatus which will receive the sacks directly from a hand truck and after elevating them` will discharge the same one at a time to any suitable device, such a conveyor belt running adjacent the upper end of the apparatus. An object in particular is to provide an apparatas having; a carrier which when a pile of sacks are deposited thereon automatically moves ulnvardly, discharges the sacks vone at a time at the upper end of the apparatus and then automatically returns to initial position for receiving another load of sacks.

The full objects and advantages of our invention will appear in connection with the detailed description thereof and the novel features embodied in our inventive idea will appear in connection with the claims.y

Referring to the accompanyinp,- drawings, 'which illustrate the application of our invent tion in one form,n y

tig. l is a side elevational view of our ma-` chine. itin'. 2 is a rear elevational view thereof. 'll ig. il is a view in vertical section on the line 2-3 of Fig'. 2. Fig. 4t is a view in vertical section on the line etwa of Fig. l.. Fig. 5 is a view in vertical section on the line 5-5 of Fig. el. Fig. 6 is a view in hori- Zonta-i. section on thel line 6-6 of Fig. 3. Fig. 7 is a vdetail view of the upper portion of the machine. Fig. 8 is a detail view of the lower portion of the machine. Fig. 9 is a view in section on the line 9-9 of Fig.

As shown in the drawings, we provide a suitable frame which includes two rear cor- ,ner posts l0, the upper portions 12 of which are rearwardly inclined and two curved members ist which are connected to the members l0 and l2 by base members 16, horizontal. bars 18 and inclined hars 20. The two 192 Serial No. 463,277.

posts l0 are connected by bars 22 but the members 14C are not directly connected to each other, so that a. space is left between them for a purpose which will presently appear. Spaced from the members ist are vmembers which have upright portions 24 at each side of the machine Aand rearwardlvinclined portions 2G extending toward the top of the machine. Reenforcing bars 2S er;- tend across the portions 2anear theplace where they are attached to the inclined portions 2G. rlransverse bars 30 and 32 entend between the two vertical members 245 and a plurality of vertical grid or rib members 34 are secured to these two bars. Extendim from the tops of the rib members 3iare a plurality of `grid or rib members 3G which are secured to transverse ba 38 and d0. As best shown in Fig. 3, the grid members and 36, respectively, are so constructed and iitted together that their forward edges form a curve which is concentric with relation to the curved members lil except that the upper ends of the members 3G are beveled at T he space at the two sides of the machine be tween the` members lt and the conjoint members .24: and 26 is filled kin with sheet steel plates del secured to' the bars i8 by rivets or bolts d6, as will appear from Fig'. l. It will now be understood that a curved rearwardly deflected slide-way formed between the memlgiers il and that the grid members lll and 36 limit the rear o this slide-way-A Adapted to. move up and down this slide-amy is a carrier or platform en havingV end plates t9 on which are mounted pairs of rollers 5l) engaging` the rear und front surfaces of flanges on the members tl by means of which the carrier is guided in its reciprocatM ing movement. Attached to the end platos 49 are cables which pass over rollers 5e. at the top of' the machine and then extend `downwardly so as to be secured to winding drums 56 secured to a shaft 58. For driving this sha-ft at the proper time an electric motor GO is mounted on the lower portion of vthe frame and a belt G2 runs over a pulley @at secured to the driving shaft of the motor and over a pulley 66 secured to the shaft 68. Secured to this latter shaft is a worm 70 which meshes with a worm wheel T2 loosely mounted on the shaft 5S and held between collars 74- and 7G so as to rotate in an oil receptacle space and causes the platform'to be'tilted as it approaches its'upward position." A positive clutch release is provided vand."theclutclr is locked in its released position until caused to operate Aby the depositing ot' the load on the platform. f f f il/*eclaimz f l. nelevating' apparatus-comprisinga' trame, guideways 'supported bysaid trame, a carrier mountedfo'r movement `on sani guideways, a movablefmember mounted on said frame for operation by Aarticles deposited'on said vcarrier when-in its lo'wer' position, a driving member, 'and connections-op-- erated by said movable member for causing said driving member to move said lcarriery upwardly. i y

2. An elevating apparatus comprising` a frame, guideways supported `by said frame, a carrier mounted for reciprocating movement on said guideways, a movable member mounted on said frame toroperation by ar-f ticles deposited .on said ,carrier when in'its lower position, a driving'member, connections operated by said movable member for causing said :driving member to move said carrier upwardly, and means for releasing" it' reaches its upper po-v shait, a clutclrassociated with said drivingv shaft, connections operated b v said movable member ttor engagingfsaid clutch to cause said rcarrier to move upwardly, and means iior'disengan'ine said clutch when said carrier reaches its upper position. A

fl. in elevating' apparatus comprising a i". .,me, curved guideways supported by said trame. a carrier mounted for reciprocating movement on said guideways; a movable member in juxtaposition to said carrier for operation by articles deposited 'thereon when in its lower position, said `guideways being' so arranged as to retain said. carrier horizontally when it is in lower position and to tilt it for discharging articles carried thereby when in its upper position, a drivinpr member, means operated byisaid movable member for causing` said driving; member to move said carrier upwardly, and means toi" releasing said carrier when it reaches its lupper position.

.ein elevatingapparatus comprisinga trame. gnideways supported by said trame, a carrier mounted for reciprocating movement upon said guideways, a movable member operated by articles deposited on said carrier when in its lower position, a drivingr shaft. a clutch associated with said *drivingshaft, connections operated by said movable mem-ber 'for/engaging said clutch to -cause ciat'edv with .said-driving shai'tpand means 4 for causing'y said brake to become operative when said carrier is approachingits lower position; i

6. An elevating frame, guidewayssupported by said iframe, a carrier mounted for reciprocating movement on said guideways, a movable member in juxtaposition to said 'carrier'tor opera'- tion by articles-deposited 'thereon'wlien invits lower-position, a levei""operated by said movable member, a driving' shaft, a clutch f associated with said driving' shaft, a shifting-'arm for sliding the -movable member ot' apparatus ,comprising a4 Til said clutch, saidshifting arm being' nor- 'A mally engaged by a shoulder on said lever forholding said movable-clutch member in' unclutclied' position, means operated by said# driving shaft `for causing said carrier toj move upwardly, fa spring 'associated' with said shitting arm for ymoving the latterinto i ji'ixtapos'ition when released by saidv engagingu shoulder, a. member operatively 'coi'i-nected to said shifting' 'levervlior pulling' the latter iu `opposition to Vthe tension jot' said 'spring'.

and means associated with "said carrierffor reaches its upper vposition whereby said ymovable clutch member is moved into unclutched position to `release said' carrier.

7. An elevating); apparatus comprising' av tween said lQ'D'uideways', a platform` mounted' for reciprocating.movement 'on'said guider ways, an operatingl member normally in iront o'l' said grid members for operationl by articles deposited on saidvplatt'orm, a

lever operated by said operating' member, a

di'ivingshatt, a clutch associated'with said driving shaft, a shitting arm for sliding the movable member of said clutch, said shiftingarm being normally engaged by a shoulder on said lever for holding' said movable clutch member in unclutched position. a pair of winding drums operated by said shaft, cables secured at one end oic said winding drums and at their other' ends to said. platforms, a spring associated with said shifting' arm for moving the latter into clutched position when released from said engaging shoulder` a member operatively connected to said shifting lever for pulling' the latter in opposition to the tension of said spring, means associated with said platform for operating; said member when the platform reaches its upper position whereby said movable clutch member is moved into nnf'lutched position to release said platform,

llo

andmeansfor 'gra'duallychecking` themjovementA ofsaidplatfoi-in as 1t approaches its All elevating apparatus; comprisingI a frame, cui-,vedguideways supported by said, frame,I a'plurality of `gri/d. members concen-` n' tric Withj saidlcurved giiideivays; and `:ir-,-

ranged tolimit lthe rear ofthe slide-Way between' said guide'ways, a platform mountedcfor lreciprocatingy .movement on said guideivaysgran operating bar normally eXl tending forwardly between two ofsaid grid members for-operation byt articles Vdeposited on said platform, a. lever .operated `by' said operating bar,,adrivingfsha-ft, aiclutch associated avithsaid ydrivingv shaft, a shifting' spring associated withsaid shi arm aiijnjfon sliding the movable member of said clutchesaid shiftingai'in being;r normally en` gaged -bya shoulder on saidl leverfor hold-Vvl in said movable vclutch ymember A; in iin clutchediiositiona pairof Winding diiinis secured to; said? drivingl` shaft,y cables .s se cured .at one end to said, Wi riding `1dr ums and] a theirf other i ends` -to said platform, a

moving the latter into clutchedpositionwhen released .from lsaid' ,engaging shoulder,

'member'.operatively connectedto lsaid shiftinglevei" for p ullingthe `latter in opposition S,

tothe tension ofsaid spring, a projection 'onj'said platform,` adapted .to operate .saiifl member: whentheplatforinreaches its 'up'- `per` position 'whereby said movablev clutch, member' is .moved into 'unclutchedj position@ to release said platform, a" Vbrake associated With said drivingrsliaft, a downwardlyop eratiniv linger attached toxsaidj platform, and ya iiiiembei';` adapted tobeoperated by iid l linger `When said vplatform.is aplliijoachiiig frame, a ,plurality` oi shoulder, la cordl operatively connected at for `apparatus comprising a y grid' members conw` centra-With saidcurvec gu leways and ar= Aranged `to, liniitthe rear of vthe slide-Wigl be-` tween, ,saidV guideways, ,a platform mounted for-reciprocating moifementon saidgiiide Ways, an operating barA normally extending'-v forwardly between two l,ofsaid gridinemj bersr for operationMby'wai'ticles deposited l,ont said platform, a .lever operatedlby vsaidpop-y eratingbar, a driving shaft, a eliitchfasxsociatedavithsaid ,drivingv shaftwa shifting larm for sliding` the n riovablev membeiiof saidV clutch, said shifting arm beingnormallyengaged by `ashoulderlon said; lever for holdingy said movable clutch memberQ in g ini-k clutched position, apair of Windingdrums secured to said y driving` shaft, cables n se-` j 4cured one end jto said ,winding drinne,

rollers at ythe'upper'endzofsaidy frame and over which said cables pass, the otheiyendsy of saidtcables being,` secured tosaid plat'- form, a spring associatedivth saidshifting arm-'formoyinggthe latter intoclii'tcliiiig f f position whenr released from said enggriggine lower t' end :to said shifting lever: forl pulling* 'the latteiyfiinfeppositioiif:to the/tension o said spring, a slidable rod to-Wliich the upy per id of 4said.cord is"ittaeheihan fria, e,L y sind rod for.moving vthe v u'pw rdiff,y a projection onisaid plat-forni y for: operating said arm *whenv ther platform f reaches its upper position whereby .saiil movable; clutch member. :is inovefllinto.,unf

oliitclied position to releasesaid platform,

a'biake drum secured to saiddrivingy shi/iftj a bi'akeband encircling'vsa'id drum, a `dowiie aardlyeopeiative linger attached to said' platform, I an operating; bar adapted to be operatedby said linger when saidv platform is approachingjits lower position, and con'- nections betiveensaid bar and said :brake band lor draiifiiig the vvlatter into engagement withv said brake druini v, y l' In (testimony. whereof We `hereunto our signatures. f

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